Alaska earthquakes

M4.1 earthquake 177 km SSE of Unalaska, Alaska

A magnitude 4.1 earthquake struck 177 km SSE of Unalaska, Alaska on Sat, Dec 22, 2018, 3:50 PM AKST (00:50 UTC), 10 km (6 mi) below the surface.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.1 (mb), light
Local time
UTC
2018-12-23 00:50:58 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
52.557° N, 165.048° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 6.8 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.11
Depth from
Operator assigned
Station coverage gap
214°, poorly surrounded by stations
Stations used
56

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 2.1100 km SE of Akutan, Alaska · 2838 days ago · 36 km deep · 97 km away
  2. 2.184 km SSE of Akutan, Alaska · 2837 days ago · 19 km deep · 97 km away
  3. 2.1104 km SE of Akutan, Alaska · 2832 days ago · 25 km deep · 93 km away
  4. 3.0177 km SE of Akutan, Alaska · 2820 days ago · 10 km deep · 99 km away
  5. 2.0109 km SSE of Unalaska, Alaska · 2818 days ago · 15 km deep · 67 km away
  6. 2.684 km SE of Unalaska, Alaska · 2813 days ago · 35 km deep · 93 km away
  7. 2.5134 km S of Unalaska, Alaska · 2804 days ago · 10 km deep · 94 km away
  8. 2.6194 km SE of Unalaska, Alaska · 2803 days ago · 10 km deep · 19 km away
  9. 2.279 km SE of Unalaska, Alaska · 2802 days ago · 35 km deep · 98 km away
  10. 2.5203 km SSE of Akutan, Alaska · 2800 days ago · 10 km deep · 32 km away
  11. 2.1159 km S of Unalaska, Alaska · 2800 days ago · 10 km deep · 95 km away
  12. 2.4207 km SSE of Unalaska, Alaska · 2800 days ago · 7 km deep · 52 km away
  13. 2.5193 km SSE of Unalaska, Alaska · 2799 days ago · 10 km deep · 40 km away
  14. 2.2189 km SSE of Unalaska, Alaska · 2791 days ago · 21 km deep · 47 km away
  15. 2.8Unimak Island region, Alaska · 2786 days ago · 15 km deep · 69 km away
  16. 2.3134 km SSE of Akutan, Alaska · 2785 days ago · 20 km deep · 65 km away
  17. 3.699 km SE of Akutan, Alaska · 2784 days ago · 18 km deep · 95 km away
  18. 3.1136 km SE of Akutan, Alaska · 2784 days ago · 10 km deep · 76 km away
  19. 2.3121 km SE of Akutan, Alaska · 2784 days ago · 12 km deep · 78 km away
  20. 2.8218 km SE of Akutan, Alaska · 2779 days ago · 10 km deep · 93 km away

Before

  1. 2.9141 km SE of Akutan, Alaska · 2839 days ago · 28 km deep · 98 km away
  2. 2.7149 km SE of Akutan, Alaska · 2839 days ago · 22 km deep · 95 km away
  3. 2.6159 km SE of Akutan, Alaska · 2846 days ago · 26 km deep · 67 km away
  4. 3.6133 km SE of Akutan, Alaska · 2864 days ago · 10 km deep · 77 km away
  5. 2.7149 km S of Unalaska, Alaska · 2864 days ago · 21 km deep · 97 km away
  6. 2.591 km SE of Unalaska, Alaska · 2864 days ago · 25 km deep · 87 km away
  7. 2.5155 km SE of Akutan, Alaska · 2864 days ago · 9 km deep · 62 km away
  8. 3.4147 km SSE of Akutan, Alaska · 2864 days ago · 10 km deep · 63 km away
  9. 2.6147 km SE of Akutan, Alaska · 2865 days ago · 28 km deep · 70 km away
  10. 3.1139 km SSE of Akutan, Alaska · 2865 days ago · 24 km deep · 67 km away
  11. 2.9143 km SE of Akutan, Alaska · 2866 days ago · 10 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000iwhb (also filed as ak018gef5qn2). Read Wed, Sep 30, 2026, 6:26 PM UTC.